1 / 7Insaga SH187-01C Spiral Ground Anchors, Set of 4
Spiral: Insaga SH187-01C ground anchors are a four-piece screw-in set for securing items such as trampolines, sheds, carports, greenhouses and swing sets. Their adjustable tops are described for horizontal or vertical installation, and the listing says a drill/driver or manual tool can be used.
At a glance
- Adjustable top ring is described as suitable for different applications and horizontal or vertical installation.
- The listing describes screw-in installation with a drill/driver, T-wrench or rod.
- The manufacturer lists trampolines, sheds, carports, greenhouses and swing sets as intended uses.
Reference price: $69.99
Price checked: Nov 13, 2026
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Pros and cons
Pros
- The adjustable top and screw-in design offer more than one stated installation approach.
- A four-anchor set is specified for several outdoor structures, including trampolines and greenhouses.
Technical specifications
12 specifications| Brand | Insaga |
|---|---|
| Model | SH187-01C |
| Weight listed | 3.41 kg |
|---|---|
| Anchor length in feature description | 15'' |
| Anchor shaft diameter in feature description | 12mm |
| Spiral diameter in feature description | 3" |
| Socket size in feature description | 14mm |
| Material listed | Alloy Steel |
|---|
| Style | Spiral |
|---|---|
| Special features | Adjustable installation, wider spiral design |
| Recommended uses | Trampolines, sheds, carports, greenhouses, swing sets |
| Number of pieces | 4 |
What to know before buying
Listing details to confirm
Listing dimensions are inconsistent: the title says 16.5 inches, a colour option says 18 inches, the feature text says 15 inches, and separate dimensions list 38.1L x 38.1W centimetres or 7.6 x 7.6 x 42 cm; 3.41 kg. The listed material says Alloy Steel while feature copy describes solid steel with a chrome plate coating and contains the wording “chorome.” Confirm the selected variant and actual anchor measurements before buying.
Who is it for?
Customer reviews on Amazon
- 5 stars
72% 72% - 4 stars
13% 13% - 3 stars
6% 6% - 2 stars
2% 2% - 1 star
7% 7%
Customer feedback reports positive impressions of quality, functionality and sturdiness, including use anchoring greenhouses and large structures such as carports. That is encouraging for buyers considering outdoor anchoring, but it does not establish performance for every structure or site. The ratings are mostly five-star, with a smaller one-star share, so experiences are not uniformly positive. The listing's conflicting anchor lengths are worth resolving before comparing these reports with the exact variant being considered.
Positive themes
- Customer feedback describes the anchors as sturdy and reports successful use with greenhouses and large carports.
- Feedback also highlights perceived quality, functionality and value.
Mixed feedback
- The overall rating distribution includes both many five-star ratings and a smaller one-star group, indicating that customer impressions are not unanimous.
Frequently asked questions
How many anchors are listed?
The product details specify 4 pieces.
What installation methods are described?
The listing describes using a drill/driver or installing manually with a T-wrench or rod. It also says the top can be adjusted for the application.
How long are the anchors?
The listing gives conflicting lengths: 16.5 inches in the title, 18 inches in a colour option and 15 inches in feature text. Check the selected listing details before purchase.
What structures are these anchors recommended for?
The listed recommended uses are trampolines, sheds, carports, greenhouses and swing sets.
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